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11-25-2018, 06:23 AM | #1 |
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Drives: G87 M2; E92M3 MT&DCT; M3 euro
Join Date: Sep 2014
Location: nyc
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Putting back stock cat after catless
Are there anything to watch out putting back stock cats after going catless for a while? My MOT is coming up soon and I need to revert back to stock.
I will take it easy for some miles with stock cat on for the DME to learn new readings.. Also canceled out o2 warnings via programming but I wonder if this will affect it. Any ideas?
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11-25-2018, 01:50 PM | #3 |
Admiral
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Just put the stock x Pipe back in and reprogram the Ecu to stock. Drive it for a few days so all sensors are ready.
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catless, exhaust, stock cat |
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